May 26, 2014 Subject:
Good quality edition, interesting piece
Surprisingly(?), not the first edition (not saying you claim so, just noting)- the Ries Gesellschaft online says that the sonata was first published in London by Clementi publishers in 1818.
(By the way, this Simrock edition is from no later than 1822; this particular edition was reviewed in the April 1822 "Allgemeine Musikalisches Zeitung", pages 263-264 (thanks, Google Books!), along with his 2 sonatas op.81. These reviews sometimes appeared a few years after publication, sometimes sooner. Anyway, 1821 might be a good guess. "or so"!)